Doffing apparatus for spinning-machines.



\ 'No. 761,980. PATENTED JUNE 7, 1904.

' J. F. MUHEIM. I V

DOFFING APPARATUS FOR SPINNING MACHINES.

- APPLIOATION PILED'JAN. 28. 1904.

N0 MODEL. 4 SHEETS-SHEET 1.

"mum

\A/ITNEEIEEEI Ink/ENTE w: norms PETER; c0; PHOTD-LITHQ, wnsulnarom 0. :1V

No. 761,980. A I PATENTED JUNE 7, 1904.

J. r. MUHEIM. A A DOFFING APPARATUS FOR SPINNING MACHINES.

APPLICATION TILED JAN. 28. 1904.

N O MODEL. 4'SHEETS-SHEET Z illlllllE-il l l W MTNEEEEEA flag 25% A 56 m: NORRIS PETERS 00.. PHOTO-LUNG wAsmNGToN, n. c.

No. 761,980 H v 'PATENTED JUNE 7, 1904.

J. F. MUHEIM. Y DOFFING APPARATUSIOR SPINNING MACHINES.

APPLIGATION'IILED JAN. 28 1904.

ms uonms Psrzns co, morou'mm wunmcran. a c.-

PATENTED JUNE7 19o4.

' J. RMUHEIM,

VDOYPFING APPARATUS FOR SPINNING MACHINES,

APPLICATION FILED JAE. 28.}904.

- I0 IODEL' 4 SHEETS-SHEET 4.

WITNEEEEE- 6'0. i/gima KQ may be simultaneously doffed by a simple opworm 8 in engagement with the gear-wheel Patented June 7, 1904.-

' UNITED STATES -PATENT O FICE.

JOSEPH MUHEIM, OF XVARREN, MASSACHUSETTS.

TDSOFFING'IAPPARAITUS Foe SPINNING-MACHINES.

' SPECIFICATION forming art of Letters Patent No. 761,980, dated. June 7, 1904.

Application filed January 28, 1904- Be it known that I, JOSEPH F. MUI-IFIM, a citizen of the United States, residing in WVarren, in the countyof Worcester and State of Massachusetts, have invented certain new and useful Improvements in Doiiing Apparatus for Spinning-Machines, of which the following 'isa specification This invention relates to a new and improved apparatus for doffing the bobbins in spinningmachines, whereby all the bobbins eration on the part of the attendant in an economical and efficient manner, all as fully described below and illustrated in the accompanying drawings, in which Figure 1 is an elevation of a portion of a spinning-machine provided with my doffing attachment. Fig 1 is a plan of a portion of the same. Figs. 2, 3, and4 are sections taken on line :13, Fig. 1, looking toward the left. Fig. 5 is a sectiontaken on line y, Fig. 1-, looking toward the right. Fig. 6 is a plan in enlarged detail, illustrating the clips for holding, removing, and applying the bobbins. Fig. 7 is an elevation in enlarged detail of the same.

Similar characters of reference indicate corresponding parts. S

1 represents the frame of the machine, 2 being the lower rail and 3 the spindle-rail, and 4 represents the full bobbins and 5 the empty bobbins, all constructed as usual.

6 represents a shaft (see Figs. 1 and 4 and dotted lines in Fig. 2) supported by the lower rail and adapted to be operated by a crank 7 or other suitable device. On this shaft is a 9 on a shaft 10, supported in the frame. Rigid on this shaft 10 are two cams l1 and 12.

The periphery of the cam 11 engages a cone shaped roll 1-3, Figs. 1, 2, 3, and 5, supported by a lever 14, whose hub 15 is rigid on the rocker-shaft 16. Rigid on thisshaft 16 is the lever 17, whose lowerend is pivoted to the link 18, whose lower end is pivoted to the arm 19, adjustably connected with the lever 20, one end of which is loose on the shaft 10 and the other end is pivotally connected with the link 21, pivoted at its opposite end to the doifer- Serial No. 190,980. (No model.)

bar 22. This doifer-bar extends through a swinging guide 23, whose lower end is pivoted at 24 to the bracket 25, secured to the rail 2, and whose upper end embraces at 26 the doffer-bar.

The cam 12 engages the roll 27 Fig. 4, supported by one end of the elbow-lever 28, pivotally supported at 29 by the extension 30 of the bracket 25, the opposite end of said lever being pivotally connected with one end of the substantially U-shaped lever 31, the opposite end of which is hinged at 32 to the guide 23.

There are a number of the lifting mechanisms above describedthat is to say, mechanisms between and including the rocker-shafts 16 and the doffer-bars 22although but one is illustrated in Fig. 1, all of said mechanisms being supported by the rocker-shafts 16, and

the links 21 in said mechanisms being constructed exactly the same as the link 21 (illustrated in, the drawings) and being adapted to be applied to the rod 33 in the same manner as illustrated in the drawings, whereby said rod constitutes a pivotal connection between a plurality of links and lifting mechanisms. Instead, however, of applying both cams to each rocker-shaft the rocker-shafts are each connected by a rigid arm 34, slotted at 35, with an arm 36, rigid on a bar 37, supported by and sliding endwise in the frame, By this means all the rocker-shafts act simultaneously without necessarily applying a cam 11 to every rocker-shaft.

The upper ends of the dofi'er-bars 22 support a horizontal shaft 38, provided on its upper side with the longitudinal groove 39, containing a slide 40. (See Figs. 1 6, and 7.) Rigidly secured to the opposite sides of this shaft 38 and extending horizontally therefrom are the full bobbins 4 and theempty bobbins 5, the full bobbins being on one side and the empty bobbins being on the other side and the full and empty bobbins being alternately arranged, as indicated in Fig. 1. The full bobbins aresupported by clips, each of which comprises a rigid jaw 41, a movable jaw 42, pivoted to the rigid jaw at 43 by means of inwardly-extendingplates 44, constituting a hinge, a flange or plate 45, integral with the jaw 41 and bolted to the bar 38 at 16, and the curved arm 427, which is integral with the movable jaw 42 and extends to the groove 39 and across the path of the projections 18, Figs. 1*, 6, and 7, which extend up from the slide 10 in said groove, the purpose of which is below described. These jaws 11 and 12 are formed at their outer ends into the curved grapples 19, each of which is preferably bifurcated, as shownin Fig. 7. Aspring 50is bolted at 51 to the plate 47 and bears against the movable jaw 42, and a hook 52 extends from the movable jaw beyond and over the edge of the stationary jaw 4C1, thus limiting the extent of the closing of said jaws by the action of the spring 50 when the bobbin is removed. To the opposite side of the bar 38 are bolted clips 53, which are provided at their outer ends with spring-grapples 5 1 of substantially the shape of the grapples 19. The clips 41 42 are for holding the full bobbins 4:, and the clips are for holding the empty bobbins 5, said sets of clips not only projecting from opposite sides of the bar 38, but those of one set being arranged alternately with those of the other set.

The shaft 38 is provided at one end, Figs. 1 and 2', with a roll 55, and at its other end it has mounted on it a gear-wheel 56. The roller is for engagement with a cam 57, secured to and extending inwardly from the left side of the frame. 58 is arack extending downward from the opposite side of the frame. (See Figs. 1 and 5.) 59 represents the spindles on the spindlerail 3. represents a counterbalance on the arm 61, extending from the rocker-shaft 16.

In Figs. 1 and 2 the machine may be considered to be in its normal position, with full bobbins ready to be removed and replaced by empty bobbins. The operation of the parts is as follows: By turning the crank 7 the shaft 6 is rotated, thus imparting rotation by means of the worm 8 to the gear-wheel 9, and hence to the shaft 10 and to the cam 12 thereon. This cam engages the roll 27, thus swinging up the long arm of the elbow-lever 28, whose short arm swings in and draws with it the lever 31, which, being pivoted at 32 to the guide 23, swings said guide inward, and hence swings inward the doffer-bar 22. The cam 11, being also rotated by the shaft 10, then moves the roller 13 and through the lever 14 imparts rotation to the rocker-shaft 16, said shaft by means of the lever 17, link 18, and arm 19 lifting the lever 20, whose outer end lifts the link 21, and hence the doffer-bar 22, the swinging in of the dofier-bar by means of the cam 12 and the lifting thereof by means of the cam 11 bringing said bar and the shaft 38 into the position indicated in Fig. 3--that is to say, opposite the l middle of the full bobbin with the jaws 49 of the clip embracing and holding said bobbin, said jaws being pressed against the opposite sides of the bobbin by means of the spring 50. The mechanism being new in the position indicated in Fig. 3 the cam 11 through the abovedescribed mechanism intermediate thereof and the shaft 38 lifts still higher the clip 11 42 until the bobbin held thereby is held entirely off the spindle in the position indicated in Fig. 1. At the same time the roller at one end of the shaft 38 is engaged by the cam 57, and said shaft moves endwise until the gear-wheel 56 is brought into engagement with the rack 58. The cam 11 next operates through the above-described mechanism with the effect of lowering the doifer-bar and causing the gear-wheel to rotate suliieientl y to impart a half-rotation to the shaft 38 in the manner indicated in Fig. 5. the endwise movement of the shaft 38 having during this process brought full bobbins between the spindles 5.) and the empty bobbins opposite the spindles, as shown in Fig. 1. \V hen the half-rotation of the gear 56 and the shaft 38 is completed, therefore, the empty bobbins have been swung over and upon the spindles from which the full bobbins were removed. \Vhen the empty bobbins have been deposited on the spindles, the gear-wheel has been dropped below the rack. The cam 12 then operates to release the empty bobbins from the clips 53 by swinging the dofier-bar 22 outward, leaving them on the spindles. The slide 10 is then moved in the groove, thus by means of its projections 18 engaging the linger -17 of each said clip (which is holding the full bobbin) and releasing it.

The above description is of the operation of a single mechanism applied to a single bobbin. All the bobbins, however, are operated at the same time, asufiieient munber of exactly similar mechanisms being provided for the purpose, this statement being subject only to the provision above described and embodied in the parts 34:, 36, and 37. To start again and apply empty bobbins, the shaft 38 must be given a half-rotation in order to bring the clips for the reception of the empty bobbins on the outside. It is also necessary that the shaft 38 should be brought back endwise into its original or normal position in order that it may be again engaged by the cam 57 when it is lifted to asuitable height. \Vhen the gear 56 was in engagement with the rack, a springpin 62 was held. by the spring 62-; into the annular groove (a, (illustrated in Fig. 1,) said spring pin being supported by a suitable bracket 65. A spring 66, secured at its opposite ends to the doficr-bar 22 and to the eye of a ring 67 on the shaft 38, holds said shaft normally to the left. Hence in order to release the shaft and allow it to return to its normal position the handle 68 on the springbolt 62 is pressed down, thus withdrawing the bolt from the annular groove 61 and allowing the spring 66 to return the shaft to its original position.

1 do not confine myself to the locking and releasing mechanism 62 to 67 nor to the engaging slide 40, provided with the projections 48, as other mechanisms may beemployed in place of these devices, if desired.

Having thus-fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a dofling apparatus for spinning-machines, an actuating-shaft mounted in the frame; a cam mounted on a suitable shaft; mechanism intermediate of the actu ating-shaft and the cam for imparting rotation to the latter; a rocker-shaft supported by the frame; mechanism intermediate of the cam and rocker-shaft for imparting movement to the latter; a swinging doifer-bar; and mechanism intermediate of the said cam and dolfer-bar whereby said doffer-bar is lifted to a point substantially opposite a loaded bobbin, for the purpose set forth.'

2. In a doffing apparatus for spinning-machines, an actuating-shaft mounted in the frame; a cam mounted on a suitable shaft; mechanism intermediate of the actuating-shaft and the cam for imparting rotation to the latter; a swinging doffer-bar; and mechanism intermediate of the said cam and doifer-bar whereby the doffer-bar is swung inward into engagement with a loaded bobbin, for the purpose set forth.

3. In a doffing apparatus for spinning-machines, a cam-shaft and a pair of-cams mounted thereon and adapted to operate successively; a swinging dofi'er-bar; mechanism intermediate of one cam and the doifer-bar for lifting said bar; mechanism intermediate of the other cam and doffer-bar; and a bobbinengaging device supported by the doffer-bar, whereby the doffer-bar is first lifted by one cam to the height of a loaded bobbin,'and then swung inward by the other cam until said engaging device grasps and holds said bobbin, for the purpose set forth.

4. In a dofling apparatus for spinning-machines, a cam-shaft and a pair of cams mounted thereon; a swinging doffer-bar; mechanism intermediate of said cams and the dofierbar whereby said bar is lifted to the height of a loaded bobbin and swung inward to said bobbin; mechanism supported by the dofferbar for engaging said bobbin; and mechanism adapted to lift the bobbin from its spindle after it has been grasped by the engaging device supported by the doIfer-bar, for the purpose set forth. i

5. In a doffing apparatus for spinning-machines, a cam-shaft and a pair of cams mounted thereon; a swinging doffer-bar; mechanism intermediate of said cams and the doffer-bar whereby said bar is lifted to the height of a loaded bobbin and swung inward toward said bobbin; a bobbin-engaging device supported by the dolfenbar; mechanism adapted to lift the bobbin from its spindle after it has been grasped by said engaging device; mechanism for moving the engaged bobbin horlzontally;

and mechanism for releasing said bobbin, for

the-purpose set forth.

6; in a doffing apparatus for spinning-machines, the actuating-shaft 6, shaft 10 and worm-gear intermediate of said shafts; the

- cam 11 rigid on shaft 10; the rocker-shaft 16 7. In a doffing apparatus for spinning-machines, the actuating-shaft 6, shaft 10, and worm-gear intermediate of said shafts; the cam 12 rigid on the shaft 10; the elbow-lever 28 provided at one end with a cam-roll; the substantially U-shaped lever 30 pivotally connected to the elbow-lever; the doffer-bar 22;

the swinging guide 23 in engagement with said doffer-bar and pivotally connected with the U shaped lever; and the shaft 38 provided with clips for engaging the loaded and empty bobbins, for the purpose set forth.

8. In a dofiing apparatus for spinning-machines, the shaft 10; the cams 11 and 12 rigid on said shaft; a plurality of rocker-shafts 16;

mechanism intermediate of the cam 11 and one of the rocker-shafts for actuating said rocker-shaft; the arms 34 rigid on the rockershafts; the horizontal bar 37 supported by and sliding endwise in the frame, and pivotally connected with the upper ends of the arms; a plurality of doffer-bar guides 23 pivoted to the frame; the doffe'r-bars in engagement with said guides; the horizontal rod 33 connecting and acting as a pivot for the doffer-bars; mechanisms intermediate of the rocker-shafts and the dofler-bars, for lifting said dofier-bars; and mechanisms intermediate of the cams 12 and the doifer-bar guides, for swinging said doifer-bars, substantially as described.

9. In a doifing apparatus for spinning-machines, the bar 38 provided with the horizontal groove 39; a slide in said grooveprovided with projections extending up therefrom; the clips each consisting of the stationary jaw 41, 49, the movable jaw 42, 49, a hinged connection between said jaws, the hook 52 extending from one jaw to the other, and the curved arm 47 extending from the movable jaw over said groove; and the springs 50 holding the rear ends of the jaws normally apart, for thepurpose set forth.

10. In a doifing apparatus for spinning-machines, .the bar 38 provided with oppositelyextending rows of clips, one row being adapted to grasp full bobbins and the other being adapted to grasp empty bobbins; thecam 57 secured to the machine; mechanism for lifting said bar into engagement With the cam; agearto this specification in the presence of two subwheel rigid on thenar; and the rack slecured scribing Witnesses. to the frame and a apted to be broug it into engagement with the Wheel by the cam and JOSEl H MUHIJM 5 thereby impart rotation to said bar, for the Witnesses:

purpose set forth. HENRY W. WILLIAMS,

In testimony \vhei'eofIhnve signed my name 'A. R; HOOD. 

